jtmckinney
New member
JohnKSa, In post #62 you said"
"It may or may not penetrate the vest depending on the vest and the type of bullet, but regardless it won't knock the person back "many ft." unless it also knocks the shooter back "many ft."
With respect I have to disagree. In appendix B of Lyman Third Edition "Pistol & Revolver" handbook the examples for a 150 grain bullet at 2700 fps "Energy In Foot-Pounds" at 2428 ft-lbs and "Free Recoil Energy" at 13.86 lb-lbs. When you plug in the bullet and velocity for any round the bullet energy is many times greater than the felt recoil.
To the OP original post the .40 is going to have more energy than the .380. That doesn't mean I would not defend myself with the .380 if that was what I had at my disposal at the time. I would carry the .40 with the biggest bullet my gun would feed reliably.
Assuming the body armor is going to stop the bullet my first thought is the FMJ would penetrate the jacket farthur than the HP. FMJ penetrating these layers would consume energy that the HP might transfer to the BG. Maybe this would make the HP the more effective of the two with everything else being equal (I said maybe).
I also think a COM shot where the body armor stops the bullet the energy is transfered to the BG in a way that may; kill him, immobilize him for a long time, or give you at least a few seconds for a follow up shot and/or better the circumstances in your favor. I do not think it would bounce off with no effect.
If the BG is wearing body armor he is also probably also armed so the most important thing is to get off the first shot that counts.
Hope you never actually need any of this advice.
James
"It may or may not penetrate the vest depending on the vest and the type of bullet, but regardless it won't knock the person back "many ft." unless it also knocks the shooter back "many ft."
With respect I have to disagree. In appendix B of Lyman Third Edition "Pistol & Revolver" handbook the examples for a 150 grain bullet at 2700 fps "Energy In Foot-Pounds" at 2428 ft-lbs and "Free Recoil Energy" at 13.86 lb-lbs. When you plug in the bullet and velocity for any round the bullet energy is many times greater than the felt recoil.
To the OP original post the .40 is going to have more energy than the .380. That doesn't mean I would not defend myself with the .380 if that was what I had at my disposal at the time. I would carry the .40 with the biggest bullet my gun would feed reliably.
Assuming the body armor is going to stop the bullet my first thought is the FMJ would penetrate the jacket farthur than the HP. FMJ penetrating these layers would consume energy that the HP might transfer to the BG. Maybe this would make the HP the more effective of the two with everything else being equal (I said maybe).
I also think a COM shot where the body armor stops the bullet the energy is transfered to the BG in a way that may; kill him, immobilize him for a long time, or give you at least a few seconds for a follow up shot and/or better the circumstances in your favor. I do not think it would bounce off with no effect.
If the BG is wearing body armor he is also probably also armed so the most important thing is to get off the first shot that counts.
Hope you never actually need any of this advice.
James